Alpha Rover - Out of Control/challenges-projects/project14/attackofthedrones/b/blog/posts/alpha-rover---out-of-controlTo say I&#39;m somewhat disappointed in the AlphaBot would be putting it mildly. I&#39;m having lots of repeatability issues. I thought I&#39;d try some obstacle avoidance using the ultrasonic sensor. I&#39;m still having significan...en-USTelligent Community 12RE: Alpha Rover - Out of Controlhttps://community.element14.com/challenges-projects/project14/attackofthedrones/b/blog/posts/alpha-rover---out-of-controlSun, 18 Apr 2021 02:16:12 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:4ee5b96c-57ec-436d-98b1-10b62ee5c1fdfmilburn1<p>That pretty much sums up my experience as well. They just won’t run straight without some kind of feedback.&nbsp; I have had good luck using encoders with interrupts and PID control.&nbsp; My plan this time is to dedicate a microcontroller to motor control have a Raspberry Pi to provide extra smarts. I just need to get started on it again. </p><img src="https://community.element14.com/aggbug?PostID=11174&AppID=289&AppType=Weblog&ContentType=0" width="1" height="1">RE: Alpha Rover - Out of Controlhttps://community.element14.com/challenges-projects/project14/attackofthedrones/b/blog/posts/alpha-rover---out-of-controlSun, 18 Apr 2021 00:58:08 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:4ee5b96c-57ec-436d-98b1-10b62ee5c1fdJan Cumps0<p>The UNO <a class="jive-link-external-small" href="https://create.arduino.cc/projecthub/feilipu/using-freertos-multi-tasking-in-arduino-ebc3cc" rel="nofollow ugc noopener" target="_blank">can run FreeRTOS</a>. Without stress.</p><p>It will take about 7K of flash. 80% is still available for your logic.</p><img src="https://community.element14.com/aggbug?PostID=11174&AppID=289&AppType=Weblog&ContentType=0" width="1" height="1">